Consider the partial sequence of a peptide.

I L W A N R M S H V L F A V E A

Select all amino acid residues likely to be on the solvent‑exposed surface once the peptide folds into its native conformation.

a. I
b. L
c. Q
d. A
e. N
f. R
g. M
h. S
i. H
j. V
k. F
l. E

a b d g k e

Explanation:

it should be

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

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